{"id":29445,"date":"2023-01-07T19:30:41","date_gmt":"2023-01-07T14:00:41","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-this-code-is-not-compiling-c\/"},"modified":"2023-01-07T19:30:41","modified_gmt":"2023-01-07T14:00:41","slug":"solved-this-code-is-not-compiling-c","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-this-code-is-not-compiling-c\/","title":{"rendered":"[Solved] This code is not compiling c++"},"content":{"rendered":"

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The keyword constexpr<\/strong> was introduced in C++11 and improved in C++14. It means constant expression. Like const<\/strong>, it can be applied to variables so that a compiler error will be raised if any code attempts to modify the value. Unlike const<\/code>, constexpr<\/code> can also be applied to functions and class constructors. constexpr<\/code> indicates that the value, or return value, is constant and, if possible, will be computed at compile time. A constexpr<\/code> integral value can be used wherever a const<\/code> integer is required, such as in template arguments and array declarations. And when a value can be computed at compile time instead of run time, it can help your program can run faster and use less memory. check this<\/a><\/p>\n

The constexpr<\/code> is not<\/strong> supported in vs2010<\/code>, but it’s supported on vs2015<\/code>, check this<\/a> to know what’s supported on vs<\/code>, actually vs2010<\/code> is not fully support of C++11<\/code>, so you may update your compiler here.<\/p>\n

So you may use vs2015 or you may not use the constexpr<\/code> here, and you may check this link to see what’s the difference between the const<\/code> and constexpr<\/code>, so if possible to use const<\/code> instead of constexpr<\/code> is possible for you.<\/p>\n

The mainly difference between them as in the previous link is:<\/p>\n